| 摘要 |
FIELD: electrical engineering; electrical machines such as low-speed high-torque wheel motors for driving vehicles, elevators, for use as motor-car starting generators and low-speed generators for wind-electric and dam-free hydroelectric power plants, and the like. ^ SUBSTANCE: proposed synchronous electrical machine has stator carrying multiphase coil winding, each coil being disposed on separate tooth and all coils being cumulatively interconnected within coil groups; rotor inductor with alternate-polarity poles; coil number in each group lambda = 3, 5, 7 ... which is negative integer odd number greater than or equal to 3. Novelty is that coils are assembled into groups so that stator tooth number Z, coil number lambda in stator coil group, coil group number d per phase, and rotor pole pair number p are interrelated by definite equations. ^ EFFECT: enhanced efficiency, improved vibroacoustic characteristics, reduced manufacturing cost due to use of practically feasible stator winding. ^ 8 cl, 2 dwg, 1 tbl |
